Since the birth of phosphating hydraulic steel pipes in 1920, hydraulic steel pipe experts have never been able to find a technical solution for non phosphating of the inner wall of hydraulic steel pipes, and have had to adopt the traditional process of overall phosphating of the inner and outer walls.
Due to the long-term immersion and high-pressure flushing of the phosphating film on the inner wall of steel pipes in hydraulic oil, secondary pollution occurs during the operation of hydraulic oil, resulting in wear and blockage of the entire hydraulic system of precision and expensive hydraulic pumps and valve components As a result, equipment shutdown and other malfunctions, as well as accidents, have become persistent pain points in the hydraulic industry.
As a leading enterprise in China's hydraulic steel pipe industry, Shanghai Tianyang Steel Pipe Honghu New Material Research Institute has developed the first surface treatment equipment and process that only requires phosphating on the outer wall of the hydraulic steel pipe while maintaining the metal body on the inner wall through independent scientific and technological strength after 3 years of technical research and development. After the comprehensive promotion and application of new technologies, it has brought comprehensive quality improvement and new user experience to the hydraulic industry, and has been highly praised by Fortune Global 500 and well-known hydraulic customers in China, setting a new technological benchmark and starting point for global hydraulic steel pipes